In the fading days of the Pharaohs, the city of Heracleion was the gateway to Egypt – an opulent and prosperous port city adorned with statues, sphinxes and home to the temple of Amun. But despite its importance, Heracleion was mysteriously wiped from the face of the Earth, after being consumed by the sea. This lost city lay forgotten beneath the waters of the Mediterranean until 2000 when archaeologists discovered the city’s remains six kilometres off the Egyptian coast and only 10 meters under water.